Wind turbine



FIG. 1 is a front perspective view of a wind turbine, showing my new design;

FIG. 2 is a cross-sectional view thereof, taken along line 2-2 of FIG. 8;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a left-side elevational view thereof;

FIG. 8 is a right-side elevational view thereof; and,

FIG. 9 is a rear perspective view thereof. 

CLAIM I claim the ornamental design for a wind turbine, as shown and described. 